AllSides Media Bias Rating™: Lean Left
The bias meter value for ProPublica is -2. -6 is the furthest "Left" value and 6 is the furthest "Right" value.
Lean Left What does this mean?

How we determined this rating:

  • Independent Review
  • Community Feedback:   ratings
  • AllSides has medium confidence in this bias rating.

Unless otherwise noted, this bias rating refers only to online news coverage, not TV, print, or radio content.

Learn about our bias rating methods
Bias Rating Lean Left
Type News Media
Region National
Owner Donor supported Nonprofit
Established 2007
Twitter @ProPublica
Facebook propublica
Wikipedia ProPublica
What a Lean Left Bias Rating Means

The source displays media bias in ways that moderately align with liberal, progressive, or left-wing thought and/or policy agendas.

Learn more about Lean Left ratings
Go to ProPublica
No Paywall
Our records indicate that content from this source is free to access. If this is incorrect, please email us to let us know.

About ProPublica

ProPublica is featured on the AllSides Media Bias Chart™.

ProPublica is a news media source with an AllSides Media Bias Rating™ of Lean Left.

What a "Lean Left" Rating Means

Sources with an AllSides Media Bias Rating of Lean Left display media bias in ways that moderately align with liberal, progressive, or left-wing thought and/or policy agendas. A Lean Left bias is a moderately liberal rating on the political spectrum.

Learn more about Lean Left ratings


ProPublica has a Lean Left bias. An April 2020 AllSides independent review found that ProPublica's bias is Lean Left. ProPublica's "Zero Tolerance" section on President Trump's immigration policy included mostly pieces about children being separated from their families at the border, with no right-wing perspectives on the policy to be found. ProPublica's Politics section includes mostly pieces critical of or investigating right-wing leaders, and few pieces on left-wing politicians. Examples of top pieces include:

The independent reviewer also noted some series in ProPublica's Healthcare section used sensationalism, a type of media bias, with series titles such as: "A Sick System," "Heart Failure," "Lost Mothers," and "Wasted Medicine." Other top pieces at the time of review included left-leaning topics such as, "What ProPublica is Doing About Diversity in 2020," and "The Hate Store: Amazon’s Self-Publishing Arm Is a Haven for White Supremacists."

Accusations of ProPublica Left Bias

A 2011 Fox News Opinion piece, "Why Don't We Hear About Soros' Ties to Over 30 Major News Organizations?" (updated in May 2015), noted that ProPublica "initially was given millions of dollars from the Sandler Foundation to “strengthen the progressive infrastructure” – “progressive” being the code word for very liberal. In 2010, it also received a two-year contribution of $125,000 each year from the Open Society Foundations. In case you wonder where that money comes from, the OSF website is It is a network of more than 30 international foundations, mostly funded by Soros, who has contributed more than $8 billion to those efforts." Fox News Opinion noted that ProPublica pieces are "thoroughly researched by top-notch staffers who used to work at some of the biggest news outlets in the nation. But the topics are almost laughably left-wing," citing investigations into "oil companies, gas companies, the health care industry, for-profit schools and more."

ProPublica Media Bias Rating Prior to April 2020

AllSides previously rated ProPublica has having a Center bias. Our President notes that this rating was the result of motivated reasoning — he really wanted ProPublica to be Center. But upon further review, it's just not the case. AllSides issued an initial bias rating for ProPublica based on the following articles:

About ProPublica

ProPublica bills itself as "an independent, non-profit newsroom that produces investigative journalism in the public interest." Its stated Mission is:

To expose abuses of power and betrayals of the public trust by government, business, and other institutions, using the moral force of investigative journalism to spur reform through the sustained spotlighting of wrongdoing.

In 2010, ProPublica became the first online news source to win a Pulitzer Prize. It has now won five Pulitzer Prizes. According to Wikipedia, "ProPublica was the brainchild of Herbert and Marion Sandler, the former chief executives of the Golden West Financial Corporation, who have committed $10 million a year to the project."

Top of Page

Community Feedback

Feedback does not determine ratings, but may trigger deeper review.

As of March 2023, people have voted on the AllSides Media Bias Rating for ProPublica. On average, those who disagree with our rating think this source has a Lean Left bias.

Confidence Level

Confidence is determined by how many reviews have been applied and consistency of data.

As of March 2023, AllSides has medium confidence in our Lean Left rating for ProPublica. Two bias reviews have affirmed this rating or multiple reviews have returned differing results. If we perform more bias reviews and gather consistent data, this confidence level will increase.

ProPublica Ownership and Funding

Funding and ownership do not influence bias ratings. We rate the bias of content only.

Owner: Donor supported Nonprofit

ProPublica received a $5 million grant meant to subsidize public health, COVID-19, and biosecurity reporting over a 3-year period from Sam Bankman-Fried. When Sam Bankman-Fried's cryptocurrency, FTX, filed for bankruptcy in November 2022 ProPublica suspended the grant. ProPublica has stated that they returned the $1.6 million they received from SBF's foundation, Building a Stronger Future.  Here is what ProPublica co-chief executives Robin Sparkman and Stephen Engelberg wrote: "In light of more recent allegations that some of Bankman-Fried’s gains may have come from fraudulent activities, it does not seem appropriate to keep these funds."

This funding has led to accusations of bias when it came to reporting on SBF.

Articles from ProPublica

This content was curated by AllSides. See our Balanced Newsfeed.